maiga, a. s. zhejiang university - institute of refrigeration and cryogenics, China , maiga, a. s. ecole nationale d’ingénieurs abderhamane baba touré eni-abt - laboratoire de thermique appliquée, Mali , chen, g. m. zhejiang university - institute of refrigeration and cryogenics, China , coulibaly, d. ecole nationale d’ingénieurs abderhamane baba touré eni-abt - laboratoire de thermique appliquée, Mali , daou, k. ecole nationale d’ingénieurs abderhamane baba touré eni-abt - laboratoire de thermique appliquée, Mali

EQUILIBRUM COMPARISON STUDIES OF METHANOL AND HCFC-123 ON ACTVATED CARBON FOR ADSORPTON REFRIGERATON

31573

In adsorption refrigeration, the adsorbent-adsorbate pair determines the behavior of the system. The knowledge of the equilibrium data between the adsorbent and adsorbate is very important for the design of an adsorber. In this study, the equilibrium adsorption of methanol and R123 on activated carbon has been studied using a thermobalance method for refrigeration and cooling systems. The relation of temperature, pressure and adsorbed mass of methanol and HCFC-123 in the activated carbon is determined using thermobalance. The equilibrium conditions were found at different levels of temperature and pressure, and the data were used to calculate the coefficients of Dubinin-Astakhov equations. Desorption equilibrium is also carried out; the cooling capacities of two refrigerants on activated carbon are evaluated. Finally a comparison is made between the two working pairs in order to find out which working is suitable for the adsorption refrigeration.

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adsorption refrigeration , activated carbon , methanol , R123 , thermobalance

Revue Ivoirienne des Sciences et Technologie

38